qbluetoothsocket.h

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// Copyright (C) 2016 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

#ifndef QBLUETOOTHSOCKET_H

#define QBLUETOOTHSOCKET_H

#include <QtBluetooth/qtbluetoothglobal.h>

#include <QtBluetooth/qbluetooth.h>

#include <QtBluetooth/qbluetoothaddress.h>

#include <QtBluetooth/qbluetoothuuid.h>

#include <QtBluetooth/qbluetoothserviceinfo.h>

#include <QtCore/qiodevice.h>

QT_BEGIN_NAMESPACE

class QBluetoothSocketBasePrivate;

class Q_BLUETOOTH_EXPORT QBluetoothSocket : public QIODevice

    Q_OBJECT

    Q_DECLARE_PRIVATE(QBluetoothSocketBase)

    friend class QBluetoothServer;

    friend class QBluetoothServerPrivate;

    friend class QBluetoothSocketPrivateDarwin;

    friend class QBluetoothSocketPrivateAndroid;

    friend class QBluetoothSocketPrivateBluez;

    friend class QBluetoothSocketPrivateBluezDBus;

    friend class QBluetoothSocketPrivateDummy;

    friend class QBluetoothSocketPrivateWin;

    friend class QBluetoothSocketPrivateWinRT;

    friend class QBluetoothSocketPrivateOhos;

public:

    enum class SocketState {

        UnconnectedState,

        ServiceLookupState,

        ConnectingState,

        ConnectedState,

        BoundState,

        ClosingState,

        ListeningState

};

    Q_ENUM(SocketState)

    enum class SocketError {

        NoSocketError,

        UnknownSocketError,

        RemoteHostClosedError,

        HostNotFoundError,

        ServiceNotFoundError,

        NetworkError,

        UnsupportedProtocolError,

        OperationError,

        MissingPermissionsError

};

    Q_ENUM(SocketError)

    explicit QBluetoothSocket(QBluetoothServiceInfo::Protocol socketType, QObject *parent = nullptr);   // create socket of type socketType

    explicit QBluetoothSocket(QObject *parent = nullptr);  // create a blank socket

    virtual ~QBluetoothSocket();

    void abort();

    void close() override;

    bool isSequential() const override;

    qint64 bytesAvailable() const override;

    qint64 bytesToWrite() const override;

    bool canReadLine() const override;

    void connectToService(const QBluetoothServiceInfo &service, OpenMode openMode = ReadWrite);

    void connectToService(const QBluetoothAddress &address, const QBluetoothUuid &uuid, OpenMode openMode = ReadWrite);

    void connectToService(const QBluetoothAddress &address, quint16 port, OpenMode openMode = ReadWrite);

    inline void connectToService(const QBluetoothAddress &address, QBluetoothUuid::ServiceClassUuid uuid,

                                 OpenMode mode = ReadWrite)

        connectToService(address, QBluetoothUuid(uuid), mode);

    void disconnectFromService();

    //bool flush();

    //bool isValid() const;

    QString localName() const;

    QBluetoothAddress localAddress() const;

    quint16 localPort() const;

    QString peerName() const;

    QBluetoothAddress peerAddress() const;

    quint16 peerPort() const;

    //QBluetoothServiceInfo peerService() const;

    //qint64 readBufferSize() const;

    //void setReadBufferSize(qint64 size);

    bool setSocketDescriptor(int socketDescriptor, QBluetoothServiceInfo::Protocol socketType,

                             SocketState socketState = SocketState::ConnectedState,

                             OpenMode openMode = ReadWrite);

    int socketDescriptor() const;

    QBluetoothServiceInfo::Protocol socketType() const;

    SocketState state() const;

    SocketError error() const;

    QString errorString() const;

    //bool waitForConnected(int msecs = 30000);

    //bool waitForDisconnected(int msecs = 30000);

    //virtual bool waitForReadyRead(int msecs = 30000);

    void setPreferredSecurityFlags(QBluetooth::SecurityFlags flags);

    QBluetooth::SecurityFlags preferredSecurityFlags() const;

Q_SIGNALS:

    void connected();

    void disconnected();

    void errorOccurred(QBluetoothSocket::SocketError error);

    void stateChanged(QBluetoothSocket::SocketState state);

protected:

    qint64 readData(char *data, qint64 maxSize) override;

    qint64 writeData(const char *data, qint64 maxSize) override;

    void setSocketState(SocketState state);

    void setSocketError(SocketError error);

    void doDeviceDiscovery(const QBluetoothServiceInfo &service, OpenMode openMode);

private Q_SLOTS:

    void serviceDiscovered(const QBluetoothServiceInfo &service);

    void discoveryFinished();

protected:

#if QT_CONFIG(bluez)

    //evil hack to enable QBluetoothServer on Bluez to set the desired d_ptr

    explicit QBluetoothSocket(QBluetoothSocketBasePrivate *d,

                              QBluetoothServiceInfo::Protocol socketType,

                              QObject *parent = nullptr);

#endif

    QBluetoothSocketBasePrivate *d_ptr;

private:

    friend class QLowEnergyControllerPrivateBluez;

};

QT_END_NAMESPACE

#endif